Tobacco pipe



Aug. 7, 1923. 1.464.359

W. W. HESSON TOBACCO PIPE Filed Sept. .14, 1920 In vemor. m A W. WQmWS MPatented Aug. 7, 1923.,

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WILLIAM WALLACE HESSON OF TORONTO, ONTARIO, CANADA.

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Application filed September 14, 1920. Serial No. 410,302.

To all whom it may concern:

Be it known that I, l VILLIAM l/VALLACE HnssoN, a subject of the King ofGreat Britsin, and resident of the city of Toronto, county of York,Province of Ontario, in the Dominion of Canada, have invented certainnew and useful Improvements inTobacco Pipes, described in the followingspecification and illustrated in the accompanying drawings, that formpart of the same.

The principal objects of the present inven tion are to enhance thepleasures of pipe smoking by eliminating many of the disagreeablefeatures incident thereto and to provide a pipe which may be retained ina clean condition and in which proper draft conditions may be alwaysmaintained.

The principal feature of the invention consists in the novelconstruction of the bowl and mouthpiece whereby an inner tubular stem isthreaded in the bowl and is adapted to be projected into the bowl andwithdrawn to free the draft opening, the inner stem being longitudinallyslidable in the mouthpiece and adapted to rotate therewith and whereby acontinuous passage free from moisture pockets is provided from bowl tomouthpiece.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof a pipe constructed in accordance with this invention and arrangedready for smoking.

Figure 2 is a longitudinal sectional view of a pipe showing the mannerof freeing the draft opening by projecting the inner stem into the bowl.

Figure 3 is a perspective view of the mouthpiece showing the inner stemattached thereto and illustrating the nonrotative connection between thetwo.

Figure & is a perspective view similar to Fig. 3 showing a slightlymodified construction in the inner stem, and Figure 5 is a plan view ofthe inner stem.

It is well known to pipe smokers that moisture pockets in the stem of apipe are very undesirable, as moisture, ashes and tobacco collecttherein and create a very undesirable condition.

To obviate this condition, several forms of pipes with inner tubularmetal stems have been devised but none of these so far as I am awarehave provided such an inner stem as will maintain a continuous passagefree from moisture pockets and which will prevent leakage of moisturefrom the bowl around the stem.

According to the present invention, the stem of the pipe bowl 1 isformed with a cylindrical passage 2 extending into i the stem from thebottomend of the bowl. "A short distance from the bowl this passage isenlarged and screw threaded with a thread 8 and the passage isfurther-slightly enlarged at 4 beyond the outer end of the t ireadedportion.

The mouthpiece 5 is provided with a cylindrical extension 6 which fitsinto a counter sink 7 in the bowl stem and the inner end 8 l of the holethrough the stem is squared. The remaining portion 9 of the hole throughthe mouthpiece is cylindrical and close to the outer end is formed witha shoulder 10.

The inner tubular stem 11 is made of aluminium or other suitablematerial and is formed with a cylindrical end portion 12 adapted to fitsnugly into the cylindrical passage 2. An enlarged threaded portion 13fits the thread 3 in the pipe bowl stem, and beyond the threaded portionthe tube is formed with a squared portion 14 which fits with a slidingfit in the squared hole 8 in the inner end oi the mouthpiece 5. Theremaining portion 15 of the inner stem is cylindrical and fits the hole9. The length of the inner stem is such that when the inner end thereofis flush with the inner surface of the bowl of the pipe, the outer endabuts the shoulder 10 and by reason of the thread in the pipe bowl stem,this inner stem may be drawn snugly up against the shoulder.

It will be seen that by rotating the mouthpiece 5 by reason of thesquared hole 8 and the squared portion 4i of the inner stem, the saidinner stem will be rotated therewith and through its engagement with thethread in the pipe bowl stem upon rotation the inner stem will be movedlongitudinally.

This feature is very important. It is well known to smokers that byreason of packing the tobacco too tight the draft passage frequentlybecomes clogged. lVith this pipe when this occurs it is merely necessaryto turn the mouthpiece which causes the inner stem to be projectedinwardly into the bowl as shown in F i gure 2, which pushes the tobaccoaway from the bottom of the bowl making an opening and by reversing theturning movement of the mouthpiece, the

inner stem is drawn back to its original position and the pipe will beclear.

It will be understood that the inner stem may be provided with a key 16as shown in Figure 4; or it may be otherwise constructed to have asliding and non-rotative contact with the mouthpiece.

It will be understood that the cylindrical end portion 12 fitting snuglyin the passage 2 will prevent dirt and ashes getting into the threadportion and the thread will prevent the leakage of moisture back alongthe outer part of the metal stem.

The contact of the shoulder 10 against the outer end of the inner stemwill prevent moisture getting around the outer side of the inner stem.If desired, the inner stem may be carried through to the end of themouthpiece as it is held from displacement by the threaded portion.

What I claim as my invention is 1. A tobacco pipe having a tubular innerstem slidably arranged in the mouthpiece, and means within the pipe stemadapted to effect the longitudinal movement of the inner stem withoutthe removal of the mouth piecea 2. A tobacco pipe having a tubular innerstem slidably and non-rotatively arranged in the mouthpiece and threadedinto the pipe stem, and being adapted to project its inner end into thebowl.

3. In a tobacco pipe, a bowl having a cylindrical opening at the bottomleading to the stem, a threadin the stem, a mouthpiece rotatably mountedin the stem, a tube having an end adapted to project into the bowl andan external thread to engage the threaded part of the pipe stem, andmeans for non-rotatively and slidably connecting said inner stem andmouthpiece.

4. In a tobacco pipe, a bowlhaving a passage through the stem threadedat the inner end, a tubular metal stem having an external threadengaging said threaded stem, said stem having a longitudinal flattenedexterior surface beyond the threaded portion, and a mouthpiece rotatablymounted in the outer end of the pipe stem and having a hole with aflattened inner wall to non-rotatively and slidably engage the flattenedsurface of the metal stem.

WVILLIAM lVALLACE HESSON.

